EDIT: just saw dudexbls reply next page which is probably the cause, I'll leave my reply in case the updated action doesn't fix the issue.
IMO, this may be an error connected with ecosystem, at least it has popped up with other downloaded assets through ecosystem where the playmaker window suddenly doesn't show up even though its installled, which seems to be the case here? The workaround I'd do is to delete all playmaker related folders and reinstall a fresh, which should not tamper with your scene unless you saved it or its components in those folders.